Caliper and divider



April 16, 1935.

l.1. BACHMANN CALIPER AND DIVIDER Filed June 16, 1932 2 sheets-sheet 2 1B @www flllorney Patented Apr. 16, 1935 UNITED STATES PTENT` OFFICE1,993,352 CAMPER AND DIVIDER Josef Bachmann, Philadelphia, Pa.Application vJune 16, 1932,` Serial No. 617,660

4 Claims.

This invention relates to calipers and dividers and the invention willbe best understood from a study of the following description, taken inconnection with the accompanying drawings 5 wherein:

` with calibrations thereon.

Figure 6 is a perspective viewof another slide block.

Figure 7 isa perspective view of the pointerv equipped end of one arm ofthe device.

Figure 8 is a perspective view of a pivot pin` yto behereinafter morefully referred to.

Figure 9 is `a sectional view taken on line 9 9 of Figure l. i

Figure 10 is a longitudinal sectional view taken'k substantially on theline Iii-i0 of Figure 6.

Referring more indetail to the drawings it will be seen' that my deviceas will be made apparent, may be used both as a caliper and as a dividercomprises arms ID and II` pivoted at one end'in anysuitablemanner and asdesignated generally at I2. d

Each ofthe arms Il), II is formed to provide a pair of parallelportions, the said parallel portions of arm I0 being designated by thereference characters Ilia, IIJb and the said parallel portions of thearm lI designated by the reference characters IIa, IIb.

A plate I3 is secured at one end between th free ends -vof portionsIlla, IUb of arm I0 as at I4, and at its free end the plate I3 hasformed integrally therewith a pointer I5.

A plate I6 is secured at one endas at I'l'l between the free ends of theportions l |a,: Ib of arm II and at its free end plate I6 is providedwith an extension l'l vequipped with a sleeve or other suitable clamp i8for securing on said end of the plate-I6 a pencil or similar markingelement I9.

Slidable on the arm `II is a substantially rectangular block 28 that? isprovided withparallel openings `2l for accommodating the portions IIa,lib of arm 1I. A similar block 22 is slidably engaged with arm lll andhas openings 23 extending therethrough for accommodating the portionsIlia, 13b of said arm Il). The block 22 may be secured at the desiredadjustment on arm I0 through the medium of a set screw 24 as clear lyshown in Figure 3, while block 2U may be secured at the desiredadjustment by a set screw The arm II,

in the present instance, on the part IIa thereof, is provided with alongitudinal scale graduated in terms of inches although the graduationsmay be in terms of centimeters or other desired units vof measurement.In the present instance, the scale is a twenty-five inch scale. Thelength of the scale will of course depend upon the length of the arm II.

In this connection, it

might be stated that the device is especially designed for use bysculptors in the making of statues and with the present device statuesranging from ve to twenty-five inches in height may be made as willhereinafter appear.

Block 20 as suggested in Figures 3 and 4 is provided in the edge thereoffacing the arm I0 with a recess 32 adapted to accommodate one end of across bar 2?.

human body.

The length of the cross bar 2l will depend somewhat on the number ofparts into which the sculptor is accustomed to divide the In thisconnection and as will be clear to those skilled in the art, somesculptors divide the humanrbody into a certain numberof parts and in thepresent instance the device is shown for use by those sculptors whichdivide the human body into fty six parts'.

has one end The bar 21 thereof adapted to fit and pivot 30, which pin Sts in either of the notches 29 provided in the edge of the block 2Dthrough which the recess 32 opens.

In this connection, it

will be understood that the pin is secured within the selected notch 29in any suitable man-V ner and that the reduced end 30 of said pin is ofa diameter to fit sufficiently snugly within the circular opening thebai' 3" 3I to permit pivotal movement of and at the same time preventsliding movement of said bar relative to the pin.

An index pin 33 somewhat similar to the pin 30 is adapted to t, and issecured in any suitable manner in either of the notches 29 provided inthe edge of the block 22 confronting the block 2E] and this pin 33 has areduced end operating within the aforementioned slot provided in the bar27 and adapted to be read against the makingS on the bar 2l.

In this connection it will be noted that for substantially the fulliength of the slot therein the bar 27 is provided with what may betermed a. scale graduated in terms of parts, each graduation lineindicating, in the present instance, cne-fty sixth part of the whole, itbeing recalled that this device is especially adapted for use bysculptors who are accustomed to dividing the human body into fifty sixparts.

The block 22 is secured at the desired adjustment on the arm I0 throughthe medium of a set screw 24 and after nal adjustment of the parts thesame are secured in proper position by tightening the set screw 24 downon to the bar 21 as suggested in Figure 9.

The manner of using the device by a sculptor and its utility will beapparent from the following: Assuming that a sculptor in making a statuedesires that the length of the arm of the statue be equal to thirtythree parts of the whole, and the full length of the complete statue isseven inches. The sculptor would rst place and secure the block 20 inthe position shown in Figure 1 with the end edge thereof facing towardthe end of the arm l I opposite the graduation line 1 of the scale 25,The block 22 on the arm i0 would be moved to a position thereonsubstantially opposite to the block 20 and secured in position by theset screw 24. The arms Hi and H would be spread apart the maximumdistance determined by the engagement' of the pin 33 in the end of theslot provided in bar 2 1 at that end of the slot remote from theaperture 3|. Next the arm l0 would then be moved inwardly toward the armil until the index pin 33 moves opposite to the thirtythird scale line28 when the set screw 24 would then be tightened to secure the Darts inposition. Upon the making of this final adjustment the distance betweenthe point of the marking instrument I9 and the point I5 will determinethe full length of the arm of the statue.

It is thought to be obvious that the length of any other parts of thestatue can'be readily determined substantially in the same manner.

It will also be apparent that the device can be used as a circle dividerand when so used the graduations on the bar 2'1 would of course be interms of inches and fractions thereof.

While I have shown only arm I! calibrated it lis apparent that arm lilmay be correspondingly calibrated, and the calibrations both on the armsand bar 21 are such as to give reading in inches although the readingsmay if desired be in the other units of measurement.

Even though I have herein shown and described the preferred embodimentof the invention it is to be understood that the same is susceptible offurther changes, modifications and improvements coming within the scopeof the appended claims.

Having thus described my invention, what I claim as new is:

1. In a device of the character described, a pair of arms pivoted at oneend, one of said arms being provided with a scale, blocks slidablyengaged with said arms, fastening elements carried by-said blocks forsecuring them at the desired adjustment on said arms, a scale memberhaving an end pivoted to one of said blocks and slidably passing througha slot in the other of said blocks, and an additional fastening devicecarried by the last named block for engagement with the scale member forsecuring said arms at the desired adjustment relative to one another.

2. In a device of the character described, a pair of arms pivotallyconnected together at one end, each of said arms having spaced parallelsides, blocks slidably engaged with said arms and having slots extendingtherethrough and slidably receiving the sides of said arms, fasteningelements carried by the blocks and engageable with the arms for securingthe blocks at the desired adjustment, one of said blocks being providedwith a laterally opening recess, and the otherof said blocks having athird slot extend ing vltherethrough, a scale member having an endpivoted within the recess of said one block, and

slidingly passing through the third slot of said other block, and afastening elementen the last named block engageaoie with the scalemember for securing the arms at the desired adjustment.

3. I n a device of the class described, a pair of arms pivotallyconnected together at one end, blocks slidably engaged with .said arms,set screws carried by the blocks and engageable with the arms iersecuring the blocks at the desired adjustment, pins carried by saidblocks, a slotted scale member having pivotal engagement with the pin 0none of said blocks and slidingly passing through a slot in the other ofsaid blocks, the Din on the last named block engaging the slot in saidscale member, and afastening device carried by the last named block andengageable with the scale member for securing the arms at the desiredadjustment.

4. In a device oi the Character described, a pair of arms pivotailyconnected together at one end, one of said arms sing provided with alongitudinal scale graduated in terms of inches, a slide block on eachof said arms., means carried by each. Slide bleek and engaeeable withits arm for securing the biock at the desired adjutment. e cross baontbe scale equipped and having a .free end portion 'slidable through aslot on the block of the other arm. said last named bloci having adevice engageabie with the cross oar for securing the arms at thedesired angular adjustment relative to one another, and said cross barbeing provided with eflongitudinal scale graduated in terms of partsjandan index carried by the last named block andreadable against thegraduations on the cross bar as and for the purpose specified.

JOSEF BACHMANN.

"voted at one end to the block,

